Molecular Diagnosis Firm BillionToOne Raises $273 Million in IPO

Nov. 6, 2025, 3:08 AM UTC

BillionToOne Inc., a molecular diagnostics company, raised $273.1 million in an upsized US initial public offering, during a US government shutdown that has complicated the listing process.

The Menlo Park, California-based company sold 4.55 million shares for $60 each, according to a statement Wednesday confirming an earlier Bloomberg News report. BillionToOne had marketed 3.85 million shares in a range of $49 to $55 each, according to its filings with the US Securities and Exchange Commission.

The share price gives the company a market value of more than $2.6 billion, based on the shares outstanding in its filings. The ...

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